Ferrograph Series 7 - BBC mods & motor bearings info? - UK Vintage Radio Repair and Restoration Discussion Forum

Mistral13 · 25th Jan 2020, 10:40 pm

Hi all,

Following a set of replacement idler wheels and a new pinch wheel - plus a huge amount of cleaning - I have now got my 722 version working well.

However, I have come across a couple of things which have piqued my intereest whilst browsing for further info on this recorder, namely the 'BBC mod' and the spool motor bearings mod - both of which have been referred to elsewhere in old posts.

I'm guessing that the BBC mnod may simply be conversion to feed balanced lines, but that would be just a guess. So if anyone has further information on either, I would be very interested to hear more.

Also, by way of a PS, does anyone happen to know of a source of replacements (other than the usual online auctions sites) for the perspex cover which runs over the two VU meters and under the I/O controls?

As always, any info would be much appreciated.

David

DMcMahon · 3rd Feb 2020, 10:38 pm

I am now also interested in the BBC mods, if anybody has any specific details please.

25th Jan 2020, 10:40 pm	#1
Mistral13 Triode Join Date: Jan 2020 Location: Milton Keynes, Buckinghamshire, UK. Posts: 28	Ferrograph Series 7 - BBC mods & motor bearings info? Hi all, Following a set of replacement idler wheels and a new pinch wheel - plus a huge amount of cleaning - I have now got my 722 version working well. However, I have come across a couple of things which have piqued my intereest whilst browsing for further info on this recorder, namely the 'BBC mod' and the spool motor bearings mod - both of which have been referred to elsewhere in old posts. I'm guessing that the BBC mnod may simply be conversion to feed balanced lines, but that would be just a guess. So if anyone has further information on either, I would be very interested to hear more. Also, by way of a PS, does anyone happen to know of a source of replacements (other than the usual online auctions sites) for the perspex cover which runs over the two VU meters and under the I/O controls? As always, any info would be much appreciated. David

3rd Feb 2020, 10:38 pm	#2
DMcMahon Dekatron Join Date: Apr 2019 Location: Worthing, West Sussex, UK. Posts: 6,604	Re: Ferrograph Series 7 - BBC mods & motor bearigs info? I am now also interested in the BBC mods, if anybody has any specific details please.